Dc simba PWM tekinoroji mashandisirwo, zvakanakira uye zvisingakwanisi

Pulse-width modulation inzira yekudzora chiyero chenguva ye semiconductor switching zvishandiso nekugadzirisa pulse upamhi kana nguva yekudzora inobuda voltage. Nekuda kwekudzvanya kwayo kunoshanda kwekurekodha dial, yakanaka dynamic mhinduro, yakakosha mabhenefiti mukuwanda uye kugona, yakashandiswa zvakanyanya mumagetsi inverters, uye tekinoroji yayo iri kuramba ichiwedzera. PWM yekudzora tekinoroji inoshandiswa zvakanyanya muinverter wedunhu, iyo ine simba guru pane inverter wedunhu. Parizvino, PWM inverter dunhu rinonyanya kushandiswa mumaseketi mazhinji inverter. Muchidimbu, unogona kudzikamisa zviri nyore kuburitsa voltage.

PWM tekinoroji inoshanda sei?

PWM tekinoroji inzira inodzora kubuda kwemagetsi nekugadzirisa iyo conduction nguva yekuchinja. PWM tekinoroji inowanzoita simba rekuchinja kuburikidza nekudzora maseketi. Saiti yekudzora inodzora nguva yekuchinja zvichienderana nemusiyano uripo pakati peinobuda voltage uye yakapihwa voltage kuti iwane yakagadzikana inobuda voltage chinangwa.

Zvakanakira zvePWM tekinoroji

1. Yakagadzikana yakabuda voltage

PWM tekinoroji inodzora iyo conduction nguva yekuchinja kuti iwane chaiyo kutonga kweiyo inobuda voltage. PWM tekinoroji inoita kuti kubuda kwemagetsi kugadzikane kupfuura echinyakare mutsara nzira dzekugadzirisa, kuvandudza kugadzikana uye kuvimbika kweiyo switch mode DC magetsi ekushandisa.

2. Kuvandudza kushandiswa kwesimba

PWM tekinoroji inodzikisira kurasikirwa kwesimba nekushandura voltage yekupinza kuita yakakwirira-frequency pulse masaini. Panguva imwecheteyo, tekinoroji yePWM inokwanisa kudzora nguva yekuitisa yekuchinja, kuderedza kurasikirwa kwekuchinja mune wired state, uye nekudaro kunatsiridza kugona kwesimba.

3. Ziva akawanda anobuda voltages

Nekudzora iyo conduction nguva yekuchinja, PWM tekinoroji inogona kuwana huwandu hwakasiyana hwekubuda kwemagetsi. Semuyenzaniso, mumagetsi emakombuta, tekinoroji yePWM inokwanisa kuwana zvakasiyana-siyana zvinobuda, senge 12V, 5V, uye 3.3V, kuzadzisa zvinodiwa zvemidziyo yemagetsi yakasiyana.

4. Shandisa kuchengetedza kuchengetedza

Wide pulse modulation tekinoroji inodzora inotungamira nguva yekuchinja kuti uwane kuchengetedza simba. Semuenzaniso, mumidziyo yemagetsi, tekinoroji yePWM inogona kuchengetedza kuchengetedzwa kwemidziyo yemagetsi nekudzora nguva yekuchinjisa yekuchinja uye nekudzima otomatiki magetsi kana voltage yanyanya kana yakaderera.

Izvo zvinogumira zvePWM tekinoroji

1. Ruzha rukuru: PWM tekinoroji inogadzira ma-high-frequency pulse signals, ayo anowanzosangana nekukanganiswa kwemagetsi uye ruzha, zvichikanganisa kushanda kwakajairika kwemidziyo yemagetsi.

2. Mutengo wepamusoro: PWM tekinoroji inoda yakakosha kudzora maseketi uye switch, uye inodhura.

3. Zvido zvepamusoro zvekuchinja: teknolojia yePWM inoda ma-speed switches. High speed switching chubhu dzine zvakakwirira zvinodiwa pakuchinja machubhu.

Muchidimbu, PWM tekinoroji ndiyo inonyanya kushandiswa kudzora tekinoroji mune switch mode DC magetsi ekushandisa. Iine zvakanakira kugadzikana kwakanaka, kushanda kwepamusoro, uye kuvimbika kwakanyanya. Nekudaro, tekinoroji yePWM zvakare ine painogumira. Zvakadai seruzha rwakakwira, mutengo wakakwira, uye zvakakwirira zvinodikanwa zvekuchinja machubhu. Nokudaro, kuitira kuti usangane nezvinodiwa zvezvigadzirwa zvemagetsi mukushandiswa kwekushandisa, zvakakosha kusarudza zvakakodzera kudzora matekinoroji zvichienderana nemamiriro ezvinhu chaiwo.